Offline Buffer issues trigger watchdog timer error

[k30r88]

Dear @tuanpmt, we would like to report a bug in this repo, it happened when the internet connection between ESP32 to the internet was interrupted. The program in ESP32 was trying to publish data to the broker until the buffer was full because the ESP32 late to realize that it was not properly connected to broker after it experienced time out beyond keep alive time. The ring buffer was full and was not properly removed when your library was trying to overwrite the ring buffer. This is our prediction. Have you experienced something like this ?